Use Ecomar Holding Tank Shock Treatment Head-O-Matic (900ml) – 4025 twice a season in the spring and fall, to descale and whistle clean walls and ceilings of black water and grey water holding tanks.
- Easy to use, non staining, freshens entire system
- Helps keep sensors and hoses clear
- Campground safe to use
- Non formaldehyde
- Treats up to 60 gallon (240 L) tank
- Quickly solves midseason malodour problems